var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var session = require('express-session');

// common configuration
module.exports = function (app, express, sessionSecret) {
    // all game port
    app.GAME_PORT = {
        DAIFUGO: 5000,
        MAHJONG: 5001
    };

    // redisStore which stores the session
    var RedisStore = require('connect-redis')(session);
    app.sessionStore = new RedisStore(app.redisSession);

    app.sessionSecret = sessionSecret;
    app.sessionMaxAge = 10 * 365 * 24 * 60 * 60 * 1000; // for 10 years

    // view engine setup
    app.set('views', path.join(__dirname, '/views'));
    app.set('view engine', 'jade');

    // uncomment after placing your favicon in /public
    //app.use(favicon(__dirname + '/public/favicon.ico'));
    app.use(logger('dev'));
    app.use(session({ resave: false,
                      store: app.sessionStore,
                      saveUninitialized: false,
                      cookie: {
                          maxAge: app.sessionMaxAge
                      },
                      secret: app.sessionSecret }));
    app.use(bodyParser.json());
    app.use(bodyParser.urlencoded({extended: false}));
    app.use(cookieParser());
    app.use(app.everyauth.middleware(app));
    app.use(express.static(path.join(__dirname, '/public')));

    // catch 404 and forward to error handler
    //app.use(function (req, res, next) {
    //    var err = new Error('Not Found');
    //    err.status = 404;
    //    next(err);
    //});

    // error handlers
    // development error handler
    // will print stacktrace
    if (app.get('env') === 'development') {
        app.use(function (err, req, res, next) {
            res.status(err.status || 500);
            res.render('error', {
                message: err.message,
                error: err
            });
        });
    }

    // production error handler
    // no stacktraces leaked to user
    app.use(function (err, req, res, next) {
        res.status(err.status || 500);
        res.render('error', {
            message: err.message,
            error: {}
        });
    });
};
